radeon/vcn: implement jpeg bitstream buffer cmd

Implement jpeg bitstream buffer cmd by programming registers directly,
since there is no firmware for VCN Jpeg decode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>

diff --git a/src/gallium/drivers/radeon/radeon_vcn_dec_jpeg.c b/src/gallium/drivers/radeon/radeon_vcn_dec_jpeg.c
index 7c078a09640203355ce8cc6cb51f5b6fd9b9d2ad..0d96acfcd2e53d164fe112dbd86180b536dec24a 100644 (file)
--- a/src/gallium/drivers/radeon/radeon_vcn_dec_jpeg.c
+++ b/src/gallium/drivers/radeon/radeon_vcn_dec_jpeg.c
@@ -59,12 +59,56 @@ static struct pb_buffer *radeon_jpeg_get_decode_param(struct radeon_decoder *dec
        return luma->buffer.buf;
 }
 
+/* add a new set register command to the IB */
+static void set_reg_jpeg(struct radeon_decoder *dec, unsigned reg,
+                        unsigned cond, unsigned type, uint32_t val)
+{
+       radeon_emit(dec->cs, RDECODE_PKTJ(SOC15_REG_ADDR(reg), cond, type));
+       radeon_emit(dec->cs, val);
+}
+
 /* send a bitstream buffer command */
 static void send_cmd_bitstream(struct radeon_decoder *dec,
                     struct pb_buffer* buf, uint32_t off,
                     enum radeon_bo_usage usage, enum radeon_bo_domain domain)
 {
-       /* TODO */
+       uint64_t addr;
+
+       // jpeg soft reset
+       set_reg_jpeg(dec, mmUVD_JPEG_CNTL, COND0, TYPE0, 1);
+
+       // ensuring the Reset is asserted in SCLK domain
+       set_reg_jpeg(dec, mmUVD_CTX_INDEX, COND0, TYPE0, 0x01C2);
+       set_reg_jpeg(dec, mmUVD_CTX_DATA, COND0, TYPE0, 0x01400200);
+       set_reg_jpeg(dec, mmUVD_CTX_INDEX, COND0, TYPE0, 0x01C3);
+       set_reg_jpeg(dec, mmUVD_CTX_DATA, COND0, TYPE0, (1 << 9));
+       set_reg_jpeg(dec, mmUVD_SOFT_RESET, COND0, TYPE3, (1 << 9));
+
+       // wait mem
+       set_reg_jpeg(dec, mmUVD_JPEG_CNTL, COND0, TYPE0, 0);
+
+       // ensuring the Reset is de-asserted in SCLK domain
+       set_reg_jpeg(dec, mmUVD_CTX_INDEX, COND0, TYPE0, 0x01C3);
+       set_reg_jpeg(dec, mmUVD_CTX_DATA, COND0, TYPE0, (0 << 9));
+       set_reg_jpeg(dec, mmUVD_SOFT_RESET, COND0, TYPE3, (1 << 9));
+
+       dec->ws->cs_add_buffer(dec->cs, buf, usage | RADEON_USAGE_SYNCHRONIZED,
+                                                  domain, 0);
+       addr = dec->ws->buffer_get_virtual_address(buf);
+       addr = addr + off;
+
+       // set UVD_LMI_JPEG_READ_64BIT_BAR_LOW/HIGH based on bitstream buffer address
+       set_reg_jpeg(dec, mmUVD_LMI_JPEG_READ_64BIT_BAR_HIGH, COND0, TYPE0, (addr >> 32));
+       set_reg_jpeg(dec, mmUVD_LMI_JPEG_READ_64BIT_BAR_LOW, COND0, TYPE0, addr);
+
+       // set jpeg_rb_base
+       set_reg_jpeg(dec, mmUVD_JPEG_RB_BASE, COND0, TYPE0, 0);
+
+       // set jpeg_rb_base
+       set_reg_jpeg(dec, mmUVD_JPEG_RB_SIZE, COND0, TYPE0, 0xFFFFFFF0);
+
+       // set jpeg_rb_wptr
+       set_reg_jpeg(dec, mmUVD_JPEG_RB_WPTR, COND0, TYPE0, (dec->jpg.bsd_size >> 2));
 }
 
 /* send a target buffer command */